Temporal variations in diatom abundance off the southern California coast during the 1920- 1939 period can be explained by a combination of the changes in the circulation patterns of major water masses and variations associated with upwelling events. Monthly, tri-monthly, seasonal and yearly anomalies of diatom abundances have significant negative correlation with the anomalies of sea surface temperature, air temperature and sea level.
Tont, Sargun A.. 1981. "Temporal variations in diatom abundance off southern California in relation to surface temperature, air temperature and sea level." Journal of Marine Research 39, (1). https://elischolar.library.yale.edu/journal_of_marine_research/1539